/* 킹수학크래프트 Modern Glassmorphism & High-Contrast Design System */

:root {
    --bg-dark: #0f172a;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent-gold: #f59e0b;
    --accent-green: #22c55e;
    --danger: #ef4444;
    --glass-bg: rgba(15, 23, 42, 0.75);
    --glass-border: rgba(255, 255, 255, 0.15);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    user-select: none;
    -webkit-user-select: none;
}

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #000;
    color: var(--text-main);
}

#canvas-container {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

#game-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* Glassmorphism Utilities */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.glass-card {
    background: rgba(30, 41, 59, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.hidden {
    display: none !important;
}

/* UI Overlay Layer */
#game-ui {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    pointer-events: none;
}

#game-ui * {
    pointer-events: auto;
}

/* Crosshair */
#crosshair {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: rgba(255, 255, 255, 0.85);
    font-size: 24px;
    font-weight: 300;
    pointer-events: none;
    text-shadow: 0 0 4px rgba(0,0,0,0.8);
}

/* Top Bar & Header Buttons */
#top-bar {
    position: absolute;
    top: 16px;
    left: 16px;
    right: 16px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.top-left-group, .top-right-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

#room-badge {
    padding: 10px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 700;
}

.divider {
    color: rgba(255, 255, 255, 0.2);
}

.highlight {
    color: #38bdf8;
}

/* Top Header Buttons */
.btn-group-top {
    display: flex;
    gap: 10px;
}

.btn-icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(59, 130, 246, 0.4);
    color: #fff;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
}

.btn-icon:hover {
    background: rgba(59, 130, 246, 0.8);
    transform: translateY(-2px);
}

#btn-save-map { background: rgba(34, 197, 94, 0.4); }
#btn-save-map:hover { background: rgba(34, 197, 94, 0.8); }

#scoreboard {
    padding: 10px 16px;
    min-width: 160px;
}

.score-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-green);
}

.badge {
    margin-left: auto;
    background: rgba(59, 130, 246, 0.3);
    color: #60a5fa;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 700;
}

#player-list {
    list-style: none;
    margin-top: 6px;
    max-height: 100px;
    overflow-y: auto;
    font-size: 13px;
}

#player-list li {
    padding: 3px 0;
    color: #e2e8f0;
    display: flex;
    justify-content: space-between;
}

/* Controls Dropdown Overlay (Top Center Header Dropdown) */
#controls-dropdown {
    position: absolute;
    top: 75px;
    left: 50%;
    transform: translateX(-50%);
    width: 380px;
    max-width: 92vw;
    padding: 16px 20px;
    z-index: 50;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(245, 158, 11, 0.4);
}

.dropdown-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    padding-bottom: 8px;
    margin-bottom: 10px;
}

.dropdown-title {
    font-weight: 800;
    color: var(--accent-gold);
    font-size: 15px;
}

.btn-close {
    background: rgba(239, 68, 68, 0.3);
    border: 1px solid rgba(239, 68, 68, 0.5);
    color: #fff;
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
}

.btn-close:hover {
    background: rgba(239, 68, 68, 0.7);
}

.dropdown-controls-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 13px;
    color: #e2e8f0;
}

.key {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    padding: 1px 6px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: #fff;
    font-weight: 700;
}

/* Toast Notifications */
.toast {
    position: absolute;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid var(--accent-gold);
    color: #fff;
    padding: 10px 22px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    z-index: 20;
    transition: all 0.3s ease;
}

/* Traditional 9-Slot Hotbar */
#hotbar {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
    padding: 8px;
    background: rgba(15, 23, 42, 0.85);
}

.hotbar-slot {
    width: 52px;
    height: 52px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
    transition: all 0.15s ease;
}

.hotbar-slot.active {
    border-color: var(--accent-gold);
    background: rgba(245, 158, 11, 0.15);
    box-shadow: 0 0 12px rgba(245, 158, 11, 0.4);
    transform: scale(1.08);
}

.slot-num {
    position: absolute;
    top: 2px;
    left: 4px;
    font-size: 10px;
    font-weight: 800;
    color: var(--text-muted);
}

.hotbar-slot.active .slot-num {
    color: var(--accent-gold);
}

.icon {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    margin-top: 2px;
}

.icon.dirt { background: #8B5A2B; border: 1px solid #5c3a21; }
.icon.grass { background: #4CAF50; border: 1px solid #2E7D32; }
.icon.stone { background: #808080; border: 1px solid #555555; }
.icon.wood { background: #8B4513; border: 1px solid #5c3a21; }
.icon.leaves { background: #2E8B57; border: 1px solid #1b5e20; }
.icon.brick { background: #B22222; border: 1px solid #800000; }
.icon.glass { background: #e0f2fe; border: 1px solid #bae6fd; opacity: 0.8; }
.icon.glowstone { background: #fde047; border: 1px solid #eab308; }
.icon.diamond { background: #00ffff; border: 1px solid #0284c7; }

.slot-name {
    font-size: 10px;
    margin-top: 2px;
    color: #cbd5e1;
    font-weight: 600;
}

/* Touch Controls Overlay - Bottom Left Joystick & Bottom Right Actions Grid */
#touch-controls {
    display: block; /* Always enabled for mobile/tablet & touch devices */
}

/* Large invisible touch-catcher: joystick spawns wherever the finger first lands here */
#joystick-zone {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 55%;
    height: 55%;
    z-index: 14;
    touch-action: none;
}

/* Floating joystick: repositioned via JS left/top on each touchstart, hidden between touches */
#joystick-container {
    position: fixed;
    width: 120px;
    height: 120px;
    z-index: 15;
    touch-action: none;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
}

#joystick-container.active {
    opacity: 1;
}

#joystick-base {
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.18);
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

#joystick-knob {
    width: 50px;
    height: 50px;
    background: rgba(59, 130, 246, 0.85);
    border: 2px solid #ffffff;
    border-radius: 50%;
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.8);
    transition: transform 0.05s ease-out;
}

#touch-actions {
    position: absolute;
    bottom: 26px;
    right: 20px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    z-index: 15;
}

.touch-btn {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    font-weight: 800;
    font-size: 22px;
    border: 1px solid rgba(255,255,255,0.3);
    color: #fff;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.btn-break { background: rgba(239, 68, 68, 0.65); }
.btn-place { background: rgba(34, 197, 94, 0.65); }
.btn-interact { background: rgba(245, 158, 11, 0.65); }
.btn-jump { background: rgba(59, 130, 246, 0.65); }
.btn-sprint { background: rgba(168, 85, 247, 0.65); grid-column: span 2; width: auto; border-radius: 24px; }
.btn-sprint.active {
    background: rgba(168, 85, 247, 0.95);
    border-color: #f59e0b;
    box-shadow: 0 0 15px rgba(245, 158, 11, 0.8);
}

/* Chat Box */
#chat-container {
    position: absolute;
    bottom: 90px;
    left: 20px;
    width: 320px;
    z-index: 12;
}

#chat-history {
    max-height: 140px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 8px;
}

.chat-item {
    background: rgba(15, 23, 42, 0.7);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 13px;
}

.chat-item .sender {
    color: var(--accent-gold);
    font-weight: 700;
    margin-right: 6px;
}

#chat-input {
    width: 100%;
    padding: 8px 12px;
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid var(--primary);
    border-radius: 8px;
    color: #fff;
    outline: none;
}

/* Modal Overlay & Login Card */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    padding: 16px;
}

.login-card {
    width: 460px;
    max-width: 95vw;
    padding: 26px 24px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 95vh;
    overflow-y: auto;
}

.logo-area .crown-logo {
    font-size: 36px;
}

.logo-area h1 {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 13px;
    color: var(--text-muted);
}

.purge-warning-box {
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.35);
    border-radius: 12px;
    padding: 10px 14px;
    display: flex;
    gap: 10px;
    text-align: left;
    font-size: 12px;
}

.login-guide-list {
    margin-top: 4px;
    padding-left: 14px;
    display: flex;
    flex-direction: column;
    gap: 3px;
    color: #cbd5e1;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
    text-align: left;
}

.input-group label {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
}

.sub-label {
    font-size: 11px;
    font-weight: 400;
    color: #94a3b8;
}

.input-group input {
    width: 100%;
    padding: 10px 14px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    outline: none;
    transition: all 0.2s ease;
}

.input-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.4);
}

.room-id-status {
    font-size: 12px;
    font-weight: 700;
    min-height: 14px;
}

.room-id-status.warn { color: #f59e0b; }
.room-id-status.checking { color: var(--text-muted); }
.room-id-status.info { color: #38bdf8; }
.room-id-status.ok { color: var(--accent-green); }

/* Pre-rendered 32 Parcel Number Grid */
.number-selector-section {
    text-align: left;
}

.section-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: 6px;
    display: block;
}

.number-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
    max-height: 120px;
    overflow-y: auto;
    padding: 4px;
    background: rgba(15, 23, 42, 0.4);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.num-btn {
    padding: 6px 0;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s ease;
}

.num-btn:hover {
    background: rgba(59, 130, 246, 0.4);
}

.num-btn.selected {
    background: var(--accent-gold);
    color: #0f172a;
    border-color: #f59e0b;
    font-weight: 900;
    box-shadow: 0 0 8px rgba(245, 158, 11, 0.6);
}

.btn-primary {
    padding: 12px 20px;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    border: none;
    border-radius: 10px;
    color: #fff;
    font-weight: 800;
    font-size: 15px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

/* Day/Night Clock Badge */
#daynight-clock {
    padding: 10px 16px;
    font-weight: 800;
    font-size: 14px;
    white-space: nowrap;
}

/* HP / Hunger Status Bars */
#status-bars {
    position: absolute;
    bottom: 88px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 16px;
    z-index: 12;
}

.status-bar-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-bar-label {
    font-size: 12px;
    font-weight: 800;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0,0,0,0.8);
    min-width: 52px;
}

.status-bar-track {
    width: 110px;
    height: 10px;
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 6px;
    overflow: hidden;
}

.status-bar-fg {
    height: 100%;
    width: 100%;
    transition: width 0.25s ease;
}

.status-bar-fg.hp { background: linear-gradient(90deg, #ef4444, #f87171); }
.status-bar-fg.hunger { background: linear-gradient(90deg, #f59e0b, #fbbf24); }

/* Inventory Panel */
#inventory-panel {
    position: absolute;
    top: 90px;
    right: 16px;
    width: 340px;
    max-width: 92vw;
    max-height: 70vh;
    overflow-y: auto;
    padding: 14px 16px;
    z-index: 40;
}

.inv-section-title, .craft-section-title {
    font-size: 12px;
    font-weight: 800;
    color: var(--accent-gold);
    margin: 10px 0 6px;
}

.inv-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.inv-cell {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 8px;
    padding: 6px 4px;
    text-align: center;
}

.inv-icon { font-size: 20px; }
.inv-qty { font-size: 12px; font-weight: 800; color: #fde047; }
.inv-name { font-size: 10px; color: #cbd5e1; margin-top: 2px; }
.inv-empty { grid-column: 1 / -1; font-size: 12px; color: var(--text-muted); text-align: center; padding: 10px 0; }

.equip-grid { display: flex; flex-direction: column; gap: 6px; }
.equip-cell {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    padding: 6px 10px;
    font-size: 12px;
}

.btn-unequip {
    background: rgba(239,68,68,0.4);
    border: 1px solid rgba(239,68,68,0.6);
    color: #fff;
    border-radius: 6px;
    padding: 3px 8px;
    font-size: 11px;
    cursor: pointer;
}

/* Crafting / Furnace Lists */
.craft-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 50vh;
    overflow-y: auto;
    margin-top: 8px;
}

.craft-row {
    display: grid;
    grid-template-columns: 1.4fr 1.4fr 0.8fr auto auto;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 8px 10px;
    font-size: 12px;
}

.craft-name { font-weight: 700; }
.craft-cost { color: var(--text-muted); font-size: 11px; }
.craft-owned { color: #60a5fa; font-size: 11px; }

.btn-craft, .btn-equip {
    background: rgba(34, 197, 94, 0.35);
    border: 1px solid rgba(34, 197, 94, 0.6);
    color: #fff;
    border-radius: 6px;
    padding: 5px 10px;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
}

.btn-craft:disabled, .btn-equip:disabled {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.1);
    color: var(--text-muted);
    cursor: not-allowed;
}

/* Character Customization Swatches */
.swatch-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.swatch {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    border: 2px solid rgba(255,255,255,0.25);
    cursor: pointer;
}

.swatch.selected {
    border-color: var(--accent-gold);
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.7);
}

.hat-swatch {
    width: auto;
    padding: 0 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    background: rgba(255,255,255,0.08);
}

.server-info-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-muted);
}

.pulse-dot {
    width: 6px;
    height: 6px;
    background-color: var(--accent-green);
    border-radius: 50%;
}